Biology 2000 JAMB Past Questions - Question 30: I. High birth rate and high immigration rate II. Low birth rate and high immigration rate III. Low mortality rate and low emigration rate IV. High mortality rate and high emigration rate. Which combination of the above can cause rapid over crowding in climax biotic communities and huma.~ settlements?

I. High birth rate and high immigration rate II. Low birth rate and high immigration rate III. Low mortality rate and low emigration rate IV. High mortality rate and high emigration rate. Which combination of the above can cause rapid over crowding in climax biotic communities and huma.~ settlements?